Home / 13,851.12-19,087.08-9,865.20

Finding the Fourth Proportional to 13,851.12, 19,087.08 and 9,865.20

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Solution

The fourth proportional to 13,851.12, 19,087.08 and 9,865.20 is: 13,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.12 : 19,087.08 = 9,865.20 : x
  2. Step 2: Convert to fraction form
    13,851.12/19,087.08 = 9,865.20/x
  3. Step 3: Cross multiply
    13,851.12x = 19,087.08 × 9,865.20
  4. Step 4: Simplify right side
    13,851.12x = 188,297,861.62
  5. Step 5: Solve for x
    x = 188,297,861.62/13,851.12
  6. Step 6: Final answer
    x = 13,594.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.